A Rare Association of Aqueductal Stenosis with Subependymal Heterotopia

Abstract

Aqueductal stenosis is one of the known causes of hydrocephalus and the most common cause of congenital hydrocephalus. Gray matter heterotopias are malformations of cortical development where the migration of neurons along specialized glial cells from near the ventricle to the cortex is interrupted, causing "normal neurons in abnormal locations". In this case report we have a case of a two-year-old girl who presented with obstructive hydrocephalus due to a stenosis in the aqueduct associated with nodular grey matter heterotopias along the walls of occipital and temporal horns of both lateral ventricles. We hereby describe the characteristic radiological features along with a review of the relevant literature.

Keywords

• aqueduct of sylvius
• cortex
• hydrocephalus
• magnetic resonance imaging